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Finding the Fourth Proportional to 649,336.70, 974,005.05 and 531,238.70

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Solution

The fourth proportional to 649,336.70, 974,005.05 and 531,238.70 is: 796,858.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,336.70 : 974,005.05 = 531,238.70 : x
  2. Step 2: Convert to fraction form
    649,336.70/974,005.05 = 531,238.70/x
  3. Step 3: Cross multiply
    649,336.70x = 974,005.05 × 531,238.70
  4. Step 4: Simplify right side
    649,336.70x = 517,429,176,555.44
  5. Step 5: Solve for x
    x = 517,429,176,555.44/649,336.70
  6. Step 6: Final answer
    x = 796,858.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.